Feature: 1. 4 IN 1 SMART LOCK: This fingerprint door knob have 4 ways of entry: fingerprint, Bluetooth APP, password and backup mechanic keys. New upgraded fingerprint technology, less than 0.3 second identification, 50 fingerprints. Suggest the finger is dry when unlocking the smart home lock, in case wet or use lotions fingerprint will affect accuracy of identification. 2. STURDY MATERIAL: The door entry lock deadbolt is made of zinc alloy material, elegant with a simple, stylish look and providing a higher grade of security and private protection for your house, apartment, office, hotel or any other individual spaces. 3. EASY INSTALLATION: The whole process of smart deadbolt installation could be finish within several minutes, the entry lock fits both left and right handed doors and no wiring and drilling needed. No more fumbling around for keys when you go out. 4. APP CONTROL: The WiFi lock can enjoy with Bluetooth unlocking anytime. See who comes and goes from anywhere. Electric keys are the new hide a key in the biometric lock app. Quickly and easily share permanent, temporary or scheduled access with friends, family, never hide a key under the doormat again. 5. MULTI FUNCTIONS: The door electronic locks deadbolt requires 4 AAA alkaline batteries (not included). The smart lock with handle functions of passage mode, automatic locking mode, scramble PIN code, low battery warning, emergency power supply are all in clusive. Specification: Item Type: Door Smart Lock Material: Zinc Alloy Bluetooth Standard: Bluetooth 4.1BLE Fingerprint Capacity: 50 Fingerprint Head Type: Semiconductor Fingerprint Speed: ≤0.3S Number of Passwords: 150 Fingerprint Rejection Rate (FRR): ＜1.0% False Recognition Rate (FAR): ＜0.001% Unlocking Method: Fingerprint, Password, Key, APP Emergency Interface: Type C Applicable Door Thickness: 30‑55mm/1.2-2.2in Battery Type: 4 x AAA Alkaline Batteries (not Included). Package List: 1 Set x Smart Lock Assembly (2 Pieces)1 Set x Lock Cylinder Assembly (14 Pieces)1 x Screwdriver2 x Mechanical Key1 x Instruction Manual